SN74LVTH16244ADL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Low-voltage, high-speed CMOS technology
  • Bidirectional voltage translation between different logic levels
  • 16-bit wide bus interface
  • Non-inverting outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation for interfacing between devices operating at different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2.3V to VCC + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Propagation Delay Time: 5.7ns
• Maximum Operating Frequency: 200MHz

Detailed Pin Configuration

The SN74LVTH16244ADL has a total of 48 pins, arranged as follows:

• Pin 1: OE (Output Enable) 1
• Pin 2: A1 (Input/Output) 1
• Pin 3: Y1 (Output) 1
• Pin 4: GND (Ground)
• Pin 5: Y2 (Output) 2
• Pin 6: A2 (Input/Output) 2
• Pin 7: OE (Output Enable) 2
• ...
• Pin 48: VCC (Supply Voltage)

Functional Features

• Bidirectional voltage translation: Allows seamless communication between devices operating at different voltage levels.
• Non-inverting outputs: Ensures that the logic levels are preserved during translation.
• 16-bit wide bus interface: Supports the translation of a 16-bit data bus.
• Output Enable (OE) pins: Control the direction of data flow.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed operation enables efficient data transfer. - Non-inverting outputs preserve signal integrity. - Bidirectional translation simplifies interfacing between different voltage domains.

Disadvantages: - Limited to 16-bit bus width, may not be suitable for applications requiring larger data buses. - Propagation delay time may introduce timing issues in certain high-frequency applications.

Working Principles

The SN74LVTH16244ADL utilizes low-voltage, high-speed CMOS technology to perform bidirectional voltage translation. It consists of a set of input/output buffers and control circuitry. The direction of data flow is controlled by the Output Enable (OE) pins. When OE is low, the device is enabled, and data can flow bidirectionally. When OE is high, the device is disabled, and the outputs are in a high-impedance state.

The input buffers detect the logic levels of the signals from the lower voltage domain, while the output buffers drive the translated signals to the higher voltage domain. The non-inverting nature of the outputs ensures that the logic levels are preserved during translation.

Detailed Application Field Plans

The SN74LVTH16244ADL is commonly used in various applications where there is a need to interface between devices operating at different voltage levels. Some specific application areas include:

1. Microcontroller Interfacing: Allows communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Facilitates data transfer between memory modules operating at different voltage domains.
3. Communication Systems: Enables level translation in serial communication interfaces like UART, SPI, and I2C.
4. Industrial Automation: Used in control systems to interface between different voltage level sensors and actuators.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Similar bidirectional voltage translator with an 8-bit bus interface.
2. TXB0108: Octal bidirectional voltage-level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

These alternative models offer similar functionality but may have different specifications, package types, or pin configurations. It is important to select the appropriate model based on specific application requirements.

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